Jacques rocheleau



(Nomade-1'.) 5'

' J. ROCHELBAU.

DOOR BELL.

Patented Apr. 15, 1,890.

wlwwtoz UNITED STATES PATENT OFFICE.

JACQUES ROCIIELEAU, OF WINDSOR, ONTARIO, CANADA.

DOOR-BELL.

SPECIFICATION forming part of Letters Patent No. 425,908, dated April 15, 1890. Application filed December 18, 1889. Serial No. 334,169. tNo model.)

To ctZZ wtom it may concern:

Be it known that l, JACQUES ROCHELEAU, a citizen of Canada, residing at Vindsor, in the county of Essex and Province of Ontario, Canada, have invented a new and useful Door-Bell, of which the following is a specication.

This invention relates to improvements in door-bells of the quick-stroke vibrating ringer variety, similar in this respect to the wellknown electric bell, but actuated by an escape-wheel and a pallet; and it consists in the peculiar construction, arrangement, and eombin ation of parts as hereinafter described, and then definitely pointed out in the claims.

In the accompanying drawings, Figure l is` a plan with the gong and back plate removed to show the escapement mechanism. Fig. 2 is a central vertical section through the door and bell, showing the actuating mechanism in side elevation. Fig. 3 isa detached view, in section, of the spiral spindle and its nut, the latter forming part of the push-button.

In the drawings which accompany this speciflcation, A represents a door or door-frame,

' and B the main plate of the apparatus screwed to the inside thereof.

B is a back plate parallel with the main plate B and secured thereto by shouldered rivet-posts, as shown.

C is a'tubular spindle having a push-button C at its outer end. The tubular spindle C slides through the external case C and the main plate B, and is providedwith a flange d to arrest its outward movement.

D is a shaft, the outer or back end ofv which is journaled through the center of the back plate B. This shaft D has a shoulder on the inner side of the back plate B and a'collar on the outside of said back plate to prevent it from moving longitudinally. Inside the back plate an ordinary escape-wheel E is mounted on the shaft D. The remaining portion of said shaft is spirally fluted or out with a thread of, long pitch and enters the inner end of the hollow spindle C, which acts as a nut. Between the escape-wheel and the flange d of the hollow spindle a spiral spring b is interposed to throw outwardly the said spindle and its push-button. The said spring is slipped loosely over the spiral shaft D.

F is a pallet having an alternating engagement with the escape-wheel- The pallet is mounted on the rock-shaft Gr, which carries the hammer-belve I-I, whose ham mer II strikes the gong-bell I. The gong-bell is axially -screwed onto a stud c, which projects out-- wardly from a curved bridge-plate J. This bridge-plate is mounted on the back plate B so as to clear the projecting journal'of the shaft D, as seen in Fig. 2.

The operation of my device is as follows: By pressing inwardly on the push-button it causes the hollow spindle-nut to travel onto the spiral shaft D, the nut not turning while under pressure. This causes the rotation of the shaft D and its escape-wheel, and the latter in turn rapidly oscillates the pallet. and its shaft, which in turn vibrates the hammer, thus causing the gong to ring. By releasing the pressure on the push-button the spiral spring b pushes out the hollow spindle, which is nowA free to turn on the spirally-threaded shaft D, as it is no longer held from turning by the pressure of the thumb.

lVhat I claim as my invention, and desire to Asecure by Letters Patent, is-

l. In a door-bell-ringing mechanism where the hammer is vibrated by an escape-wheel and pallet, substantially as described, the combination, with said escape-wheel, of a spirally-threaded shaft rigidly fastened to said escape-wheel, and a nut of similar pitch constructed to be moved longitudinally by an eX- ternal push-button, substantially as shown and described. s

2. In a door-gong-ringing mechanism, substantially as described, the combination of the plates B B', the threaded tubular pushbutton spindle C, working through plate B, the spirally-threaded shaft D, engaging in said tubular push-button, escape-wheel E, rigidly fastened to said shaft D, pallet F, rock-shaft Gr,v hammer H', firmly connected to the rockshaft, gong I, bridge-plate J, connecting the gong to the plato B', and the spring b, allsubstantially as shown and described, and for the purpose set forth.

JACQUES ROCHELEAU. vWitnesses:

OWEN MCKAY,

E. I. SoULLY. 

